M4.7 earthquake - 39 km E of Port Alsworth, Alaska
1036 d ago · 16 Dec 2023, 19:24 UTC 39 km E of Port Alsworth, Alaska
A tsunami flag was raised for this event. This does not mean a tsunami occurred. Always follow official tsunami warning centres and local authorities.
What happened
A magnitude 4.7 earthquake struck 39 km E of Port Alsworth, Alaska on 16 Dec 2023, 19:24 UTC at a depth of 188 km.
Earthquakes of this size are classed as Light. Widely felt nearby; objects may shake or fall. Significant damage is unusual. This was an intermediate-depth earthquake, so shaking is spread over a wider, gentler area.
The nearest town in our records is Anchorage, about 230 km away in Alaska, United States.
Timeline
First reported by USGS
17 Oct 2026, 11:17 UTC
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